Pneumatic vibration-diffuser.



G. H. 00X.

PNEUMATIC VIBRATION DIFFUSER.

APPLICATION FILED JAN. 26, 1900.

992,483. I Patented May16,191l.

8 W00 do? CHARLES H. COX, 0 LOS ANGELES, GALIFORNIA.

PNEUMATIC VIBLRATIONQDIFFUSER.

Specification of Letters Patent.

atcntcd illay 16, 1911.

Application filed January 528, 1909. Serial No. 474,331.

'7) all whom it may concern:

lle it known that I, CIIIARLIGS ll. Cox, a citizen of the United States, residing, at lios Angeles, in the county of Los Angeles and State of (hilifm'nia, have invented a new and useful Pneun'uitic Viln'atioirl litluscr :t'or Vehicle-Seats, of which the following is a specification.

My invention relates to improved means tor the diffus on of vibrations caused by road travel, and otherwise, in motor driven vehicles.

The objects of my improvements are, first,To provide means that will more completely and successfully absorb jars and difit use vibrations than any i'ncans now in use for that purpose. Sccond:---'Ilo construct flexible, pneumatic bulbs, preferably of rubber and fabric in such a manner that they an be anchored securely between (ltllitllllling means and also firmly connected to an it ing the position of the air reservoir relativeair reservoir by means of conduits; said tern having a check valve attached thereto,

' to which an air pump may be attached for inflating said air system to the desired pressure. Thi d :--To provide deforming means which'will, owing to their form of construe tion, facilitate the deformation of said bulbs when placed between the aforesaid means and subject to action, without undue cramping or straining of the walls thereof, and also furnish reliable ancl'lorage, 0., the sockets and apertures. for the aforesaid bulbs. ()ther substantial benefits are derived from the use of such means for deforming said bulb, such as prolon riinc the lite ot the pneu- -1natic bulb. rendering more resilience and providing: for the absorption (it long and short viln'ations. l attain these objects by the use oi the mechanism illustrated in the acconunurviiur drawings, in which,

l igure l is a vehicle seat broken away in trout in order to show the position ot the pneumatic vibration dill'user. Fin. 2 a

' sectional view of the pneumatic vibration ditl'ui-icr and the deforming means attached to a bracket. Frau 3 is a view ot the Inside oi. the top and bottom parts ot a seat showto the position of the pncunnitit'a vibration dill'uscrs. ()n the inside of the top part oi the seat may be seen the deforming means. Fig. 4 shows the pneumatic vil'nation dill'uscr positioned between the deforming means.

- Similar figures refer to similar parts throughout the several views.

I is a vehicle seat. 1 is the bottom part oil said seal, 2 being the top part.

3 are the pneumatic vibration ditlusers.

l is an air reservoir. 4t is a means to connect: said reservoir to the seat bottom.

are air conduits.

(l are deforming means with. apertures therein.

6' are connecting;' plates and 7 are anchor bolts which are passed through an aperture in deforming means (3 and on through a hole in plate (5' sullicicntly to screw a nut on, thereby securely fasteningplate 6' and deforming means 6 together.

7' are screws which connect plates 6 to the undersu'le of seat top 2.

S are brackets with apertures therein.

8' are bolts which connect brackets S to the inside end of the vehicle seat. Screws 8 securely hold deforming means 6 to bracket: 8.

9 is a hollow shank and a part of the pneumatic vibrationdill'uscr fl constructed thus to atl'ord an inlet for air by means of conduits 5 from air reservoir 4.

'lo position the pneumatic vibration (lit .tuser 3: Pass the hollow shank .1) through the aperture in deforming means (3 and also through the aperture in liniacket 8, insert nipple 10 into hollow shank 9; clamp 10 can now be adjusted to the outside of hollow shank 9, which, when screwed up tight, will not only form a fastening means to prevent air leakage. but, also holds the pneumatic vibration ditluscr 3 in bracket 8.

ll are solid shanks and are a part of pneumatic vibration ditl'uscr Cl.

11 are sockets provided in deforming means (S for shank ll to lit in. thus forming a pivot which holds dcl'ormiiu: means (l and plate (3 onto the pneumatic vibration dit-.

The pneumatic bulbs are constructed with 'hollow and solid shanks,,said shanks hcin r' a part thereof, not an ad unct thereto; the structural material used eonslsts of alternate layers of rubber and rubber-coated fabric, so arranged as to produce "the necessary strength and flexibility required by said structure. 4

Having thus described my invention what I claim and desire to secure by Letters Patent is:

I claim- I '1. In neumatic vibration diffusers, the combination of a plurality of pneumatic,

flexible bulbs with solid and hollow shanks attached thereto, being a part thereof and projecting therefrom; an air reservoir with a check valve attached thereto; conduits affording communication between said bulbs communication between said bulbs and said air reservolr through said hollow shanks;

pairs of convex deforming means with apertures therein, one member of each pair of said deforming means having a socket therein, between which the aforesaid bulbs may deform, in combination with a vehicle seat.

3. In a pneumatic vibration diffuser a flexible bulb having flexible sblid and tu'bular shanks, said shanks being a part thereof "and. projecting therefrom; a bracket at tachment for the support of said bulb; an

air reservoir with a check valve attached thereto; a conduit affording communication between said bulb and said air reservoir through said tubular shank; convex means in parts, one part having an aperture, the

other part having an aperture and a socket therein to deform the aforesaid bulb when positioned for that purpose.

4. In a pneumatic vibration diffuser, the combination of a vehicle seat and a spherically formed bulb of flexible material, with projecting solid and hollow shanks, said shanks being a partthereof; an air reservoir with a check valve attached thereto; a conduit connecting said air reservoir and the aforesaid bulb-by way of said hollow shank;

convex deforming-means in parts, with apertures therein, one of said parts also having a socket, between which a flexible bulb may deform. v

5. In pneumatic vibration diffusers, the

combination of spherically formed, flexible, pneumatic bulbs, with shanks projecting therefrom and being a part thereof, one of said shanks on each bulb having a passage therein through which a fluid may be admitted to the inside of said bulbs; an auxil iary fluid reservoir with a check valve attached thereto; conduits connecting said res ervoir and the aforesaid bulbs; pairs of convex means with apertures therein to de form said bulbs, one member of each of said pairs having a socket.

6. In a pneumatlcivibration diffuser, a flexible bulb having flexible shanks which are a part thereof and project. therefrom, one of said shanks having a passage therein to receive a conduit through which a fluid may be admitted to the inside of sad bulb. 4

7. In a pneumatic vibration diffuser, a

flexible, pneumatic bulb having flexible shanks which are a part thereof; one of sald shanks havlngan unrestricted passage thereu e or,

in suitable to conduct a fluid to the of said bulb.

8. In a pneumatic vibration diff-user, a flexible,. pneumatic bulb having flexible shanks which are a part thereof, one of said shanks having a passage therein suitable to receive a conduit through which? a fluid can pass unrestrictedly between said bulb and a fluid reservoir; convex means, in parts, having receptacles suitable for the aforesaid flexible shanks to fit in. l

9. .In a pneumatic vibration diffuser, a

flexible, pneumatic bulb having flexible shanks, one of said shanks having an unrestricted passage therein suitable for the passage of air to and from a reservoir of compressed air; convex means having receptacles for the aforesaid flexible shanks to fitin.

CHARLES H. COX. Witnesses ALBERT E. SMITH, MYRTLE C. EA'soN. 

